sux::util Namespace Reference

Classes
class	Expandable
class	FenwickBitF
class	FenwickBitL
class	FenwickByteF
class	FenwickByteL
class	FenwickFixedF
class	FenwickFixedL
class	SearchablePrefixSums
class	Vector

Enumerations
enum	AllocType { MALLOC, SMALLPAGE, TRANSHUGEPAGE, FORCEHUGEPAGE }

Enumeration Type Documentation

AllocType

enum sux::util::AllocType

Possible types of memory allocation.

See also

https://www.kernel.org/doc/html/latest/admin-guide/mm/hugetlbpage.html

https://www.kernel.org/doc/html/latest/admin-guide/mm/transhuge.html

Enumerator
MALLOC	Standard allocation with malloc() (usually, the default).
SMALLPAGE	Allocation with mmap(). Allocations are aligned on a memory page (typically, 4KiB).
TRANSHUGEPAGE	Transparent huge pages support through mmap() and madvise() on Linux. Allocations are usually a mutiple of 4KiB, but they can be defragmented in blocks of 2MiB each.
FORCEHUGEPAGE	Direct huge page support through mmap() on Linux. In this case allocations are aligned on a huge (typically, 2MiB) memory page. This feature is usually disabled by default and it requires the administrator to pre-reserve space for huge memory pages as documented in the reported external references